Bently Nevada 3300/01 Series, Operation Manual

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System Monitor
16 I PROTOCOL SPECIFICATIONS
ALLEN BRADLEY PROTOCOL EXCEPTION RESPONSES
80175-01
Error codes will be returned in the response message when the interface receives a message with
an illegal function, address, or data range. Error codes returned in the message are Allen Bradley
type REMOTE error codes.
Error Code Error Condition
10
50
This error is sent from the interface if the command message was
incorrect. This includes the command code, subcommand code,
and size of the command or the requested size
An attempt to access an illegal address in the interface has
aborted message execution.
Example:
An unprotected read is attempted from address 44 which is an illegal address for a direct
data request. The reply message returns the error code 50.
The maximum number of valid direct data addresses is 36. First valid address is 8, last valid
address is 43.
Status data addresses start at 48. The maximum number of valid status addresses is 36 (3 status
values for each of 12 monitors). The last valid status address is 83.
Data requests outside of these ranges will either result in an error code 10 or error code 50
message response. Error code 10 will occur if the starting address is valid but the number of
values requested results in a data address outside the valid range. Error code 50 occurs if the
starting address is outside the valid address range.
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